baber/WOPTO huggingface dataset:
Patent GB-849718-A (GB)
Title: Improvements in or relating to semi-conductor production
IPC: C30B9/14
Filed: 1958-12-18
Abstract: <PICT:0849718/III/1> In a process of producing high-purity germanium or other semi-conductor substance as described in the parent Specification the heating current through the carrier body is regulated to produce the desired surface temperature by varying the inductive reactance of either the circuit supplying the current or a circuit controlling the current in the supply circuit.  Fig. 1 shows an apparatus for producing high-purity silicon in which a mixture of silicon tetrachloride and hydrogen from a nozzle 8 is passed over a silicon carrier 2 heated by a current from electrodes 3, 4.  The electrodes are fed either directly or through a rectifier 18 from an alternator connected in series with an inductance 7.  The temperature of the carrier is measured by an optical pyrometer 10 connected to relays 13R, 14R, the contacts 13r, 14r of which are in circuit with a motor 15.  A pulley on the motor shaft is connected mechanically with a movable core in the inductance. Thus if the temperature of the carrier drops below the optimum value, relay 14R operates to cause the motor to move the core out of the inductance and if the temperature exceeds the optimum value the relay 13R operates to cause the motor to move the core into the inductance.  Instead of having a movable core the inductance may be in the form of a variometer or the reactance may be altered by controlled short-circuiting, by relative expansion and contraction of the coil turns or by means of tappings. The reactance may also be varied by altering the frequency of the supply current or by using a saturable core with a variable magnetising current.  As an alternative to the above method of control, a test is performed to establish the necessary variations in heating current to maintain the desired optimum temperature and a cam 20 (Fig. 2) is shaped to conform with these variations.  This cam, driven by a clockwork mechanism 22, is used to move the core 7K of the inductance, via a follower 23.
Patent GB-1431472-A (GB)
Title: Inertia locking safety belt reel assembly
IPC: B60R22/38
Filed: 1973-08-31
Abstract: 1431472 Inertia-locking safety belt reel assembly TAKATA KOJYO CO LTD 31 Aug 1973 [1 Sept 1972] 41012/73 Heading A3V A safety belt reel assembly comprises a spring loaded shaft 2 journalled in a bracket 1 and rigidly carrying first ratchet wheels 5, a first pawl member 6 rockably mounted in the bracket for engagement with the ratchet wheels 5 and biased by a spring 8 out of engagement therewith, a clutch member 15 rotatable with the shaft 2, an inertia memiber 14 surrounding the clutch member and in frictional engagement therewith so as to rotate with the shaft in normal use but to lag behind during rapid belt withdrawal, a second ratchet wheel 13 rotataibly mounted on the shaft, a second pawl member 16 pivotally mounted on inertia member 14 and adapted to engage and rotate the ratchet wheel 13 on relative rotation between the clutch and inertia members, and a link 10 which couples the ratchet wheel 13 to the first pawl member 6 so as to rock the latter into locking engagement with the first ratchet wheels 5 in response to rotation of the wheel 13. The second pawl member engages a notch 22 in the clutch memiber and is biassed by a spring 18 out of engagement with the ratchet wheel 13. The inertia mechanism including the clutch member 15 is isolated from the locking forces so can be made of die castings or by resin injection or transfer moulding. To encourage correct wearing of a seat belt associated with the reel assembly, a modified embodiment has the inertia mechanism 13 to 16 mounted between one of the ratchet wheels 5 and the corresponding side wall of the bracket 1 and a pinion is secured to the associated end of the shaft 2 to actuate a device which deenergises an electrical alarm when a predetermined length of belt has been withdrawn.
Patent GB-937007-A (GB)
Title: Process for the production of substantially stress-free moulded bodies from high molecular weight thermoplastic polycarbonates
IPC: B29C71/02
Filed: 1961-11-16
Abstract: Moulded bodies of high molecular weight thermoplastic carbonates e.g. from bis-(hydroxy phenyl) propane are relieved of internal stresses (as measured by immersion in carbon tetrachloride by maintaining in a heat transfer medium at 300 to 1200 DEG C. without melting of the polycarbonate.  Extruded polycarbonate tube, either water cooled or by passage through a sealer heated tube at 87 DEG C. followed by water at 87 DEG C. is heat treated at 310 DEG  to 355 DEG C., by passage either intermittently or continuously through a resistance heated tube within which it may be rotated.  Alternatively, tube prepared according to Specification 920,375 is passed through a ring burner at 1200 DEG C. when stretching may simultaneously occur.  The tube interior may be continuously flame treated by a burner at the centre of the extrusion nozzle.  Babies milk bottles may also be flame treated. Other forms of heat treatment comprise heated inert gases e.g. nitrogen or carbon dioxide, or hot baths of liquid hydrocarbons on low melting metals or metal alloys.  Alternatively, induction heating can be obtained from an induction wound core maintained concentrically within the tube by external magnets. Further residual stresses may be removed by a short treatment at 120 to 145 DEG C.
Patent GB-857130-A (GB)
Title: Improvements in or relating to the process for the production of dyed cellulose acetate filaments by the spin-dyeing process
IPC: D01F1/06
Filed: 1958-12-23
Abstract: Spin dyed cellulose acetate filaments are produced using a dyestuff of the general formula: <FORM:0857130/IV(a)/1> wherein the nucleus A can contain one or two substituents chosen from chlorine atoms and methyl groups.  The cellulose acetate may be a secondary acetone-soluble acetate or the triacetate.  The dyestuffs may be produced by heating perylene-3, 4, 9, 10-tetracarboxylic acid or its anhydride with aminobenzene or aminobenzene in which the nucleus is substituted by methyl groups or chlorine.  In an example, 100 parts of a secondary cellulose acetate, 400 parts of acetone and 1 part of the dyestuff made as above using aminobenzene are ground in a ball mill until the suspension contains no pigment particles larger than one micron and the suspension is dry spun to form red filaments fast to light and all normal treatments.
Patent GB-955183-A (GB)
Title: Device for filling a tubular container with mastic or the like
Inventor: JACKSON BARRY SIDNEY
IPC: B65B3/16
Filed: 1961-11-22
Abstract: 955,183. Charging containers with plastic substances. EVOMASTICS Ltd. Oct. 16, 1962 [Nov. 22, 1961], No. 41744/61. Heading B8T. A device for filling a container such as a refill cartridge with a plastic substance, e.g. mastic, contained in an open-topped tin &c., comprises a plunger disc 1-3 having an aperture 4 above which the open end of the cartridge 6 is held during filling, the disc being pushed down into the tin to force the contents through the aperture into the cartridge. The cartridge may be located on a collar 5 and held by a loose plate 4 engaging lugs 10 on a handle 7-9. Further lugs 11 accommodate a cartridge of different length.
Patent GB-1388310-A (GB)
Title: Apparatus for changing individually the orientation of flat structures especially printed products conveyed in a continuous imbricated formation
IPC: B65H29/00
Filed: 1972-09-08
Abstract: 1388310 Delivery sheets FEHR & REIST AG 8 Sept 1972 [14 Sept 1971 14 Dec 1971] 41939/72 Heading B8R Flat articles 11, Fig. 2, delivered in an overlapping stream along a conveyer are rotated through 90 degrees in the feed plane by means of gripper devices 14 arranged on a chain 15. In the particular form of Fig. 2, two chains 15, 15<SP>1</SP> carry groups of grippers 14, 14<SP>1</SP>, each group on one chain being aligned with a gap between two groups on the other chain, so that sets of articles are rotated in opposite directions. Each gripper mechanism 14, Figs. 2, 3 and 4, comprises a pair of jaws 60, 62, the jaw 62 being opened and closed by stationary cams as it enters and leaves the run of the chain along the feed path. The jaws are mounted on a shaft 33 rotatable on a carriage 31 guided along a rail 30 as the chain moves, and the shaft carries a sprocket 58 engaging a chain 22 moving more slowly than the chain 15, so that the shaft 33 is rotated through 90 degrees as the gripper traverses the run of the chain 15 along the feed path, the jaws originally facing rearwardly. Alternatively the jaws may project above the rail 30, initially face forwards to engage the trailing edge of an article, and the chain 22 moving faster than the chain 15. In another form, Figs. 6 and 7 (not shown), the jaws are replaced by pneumatic grippers, connected to a suction source through a rotating distribution head only when passing along the feed path. The sprocket 58 may be replaced by a gear-segment or rack, or a lever actuated by a cam. In another form, Fig. 9, each chain carries a plurality of members 122 each formed with a sharpened tip 127 to enter a folded article such as a newspaper. Since the chains as 120 carrying the members 122 moves faster than the article feed conveyer, each tip moves up against the internal leading fold of the article and rotates it. Two chains 120 may be provided having groups of members 122, with gaps as in  Fig. 2.
Patent GB-936795-A (GB)
Title: Improvements in or relating to machines organised for applying a ribbed strip to insoles for shoes
IPC: A43D43/06
Filed: 1958-12-30
Abstract: 936,795. Applying ribs to insoles. BRITISH UNITED SHOE MACHINERY CO. Ltd. (United Shoe Machinery Corporation). Dec. 23, 1959 [Dec. 30, 1958], No. 41979/58. Class 17 (1). A machine for applying and attaching a ribbed strip to a shoe insole has means for automatically stopping a strip feeding and attaching operation at a predetermined stage and, after a time delay, severing the strip. The strip S, Fig. 1, is fed into engagement with the margin of an insole and pressed thereagainst by a presser and feed foot 32, which also feeds the combined insole and strip. The depression of a treadle rod 74, 76 positions foot 32 to press the leading end of strip S against the insole and engages a clutch to feed power to the feed foot operating mechanism. The operation of foot 32 is automatically stopped when it reaches a point along the insole margin in transverse alignment with the starting point. For this purpose a finger 86 is arranged to engage the top of the strip, at a point on the insole margin opposite to that on which the foot 32 is operating, Fig. 7, and to remain in engagement until it drops off the end of the strip. In falling, the finger operates a microswitch 108 to stop the operation of the foot and, after a predetermined delay, to operate a knife to sever the strip. When finger 86 moves on to the strip an arm 98, carrying finger 86, swings clockwise about a pin 100, Fig. 10, carrying with it an arm 106 on which is mounted microswitch 108, a washer 134 secured to arm 98 extending beneath arm 106. Arm 106 is locked in its raised position by a detent 114 engaging a notch 112 in a lever 110 connected to the arm, switch 108 being open while arms 98 and 106 are in parallel relationship. When finger 86 drops off the end of the strip, arm 98 swings downwards, closing switch 108 to energize a solenoid 130. Solenoid 130 pulls rod 118 to the left, Figs. 1 and 3, to disconnect upper treadle rod section 74 from lower section 76. Upper section 74 is then moved upwardly, to an abutment 142, by a spring 140, swinging lever 66 anticlockwise about shaft 68 to stop foot 32, the operator still keeping the treadle depressed. When rod 118 moves to the left, a striker 146 engages the upper end of lever 110 to swing it out of engagement with detent 114. Arm 106 then swings downwardly into parallel relation with arm 98 to re-open switch 108, a relay, energized by the closure of the switch, continuing to operate. A knife 154, Figs. 1, 7 and 12, movable transversely of the insole, is operated to sever the strip by the energization of a solenoid 166 connected through links 162, 160 and 158 to knife-carrier 156. Solenoid 166 may be energized automatically by microswitch 108, through a time delay relay, or manually, by a knee pad 174- operated microswitch 168, a selector switch 192 being incorporated. Specifications 651,635 and 707,899 are referred to.
Patent GB-1007880-A (GB)
Title: Improvements in or relating to processes for manufacturing cellular products
IPC: C08J9/08
Filed: 1963-10-24
Abstract: A rigid cellular product is formed by heating a mixture of polyvinyl chloride base, polyisocyanate, blowing agent and one or more polymerizable monomers, in an airtight mould under pressure, removing the cellular product from the mould between 90 DEG  and 140 DEG  C. and then reacting it with hot water or steam.  The starting mixture may also contain an anhydride of an ethylenic carboxylic acid and a halogenated alkane.  The term "polyvinyl chloride base" includes the homopolymer as well as copolymers of vinyl chloride containg less than 25% of vinylidene monomers such as vinylidene chloride or vinyl monomers such as vinyl acetate. Blowing agents used are those which liberate nitrogen on heating, e.g. azodi-isobutyronitrile. Polymerizable monomers specified are styrene, acrylonitrile, methyl acrylate, ethyl acrylate, octyl acrylate, methyl methacrylate, ethyl methacrylate maleic anhydride and fluoro- and halo-derivatives of these compounds. Specified anhydrides are maleic, acrylic, itaconic and citraconic anhydrides.
Patent GB-844579-A (GB)
Title: Improvements in card clothing
IPC: D01G15/86
Filed: 1958-12-31
Abstract: 844,579. Card clothing. LAROCHE, L. C. Dec. 31, 1958 [Jan 8. 1958], No. 42147/58. Class 120(3). Card clothing comprises a support layer 2, a plurality of U-shaped teeth 5 each having a rounded base 5a and two bent limbs, said teeth having their limbs engaged through the support layer 2, and a layer of plastic material 4 applied before hardening to the face of the support layer adjacent the base of the teeth so as to fill any interstices existing in the support layer about the limbs of the teeth and caused by forcing the bent limbs through the support layer. The teeth may be made from flat steel strip, bent into a U-shape about an axis parallel to its major surfaces, the base of each tooth being semicircular. The plastic material used may be a polymerisable synthetic resin; vinyl chloride or vinyl acetate are mentioned. It may contain an electrically-conductive material e.g. carbon black to conduct away static electricity.
Patent GB-1485893-A (GB)
Title: Skylights
IPC: E04D13/035
Filed: 1975-10-15
Abstract: 1485893 Reversible sky-light window J SCHMIDT 15 Oct 1975 [18 Oct 1974] 42291/75 Heading E1J A top hinged sky-light window which can be reversed for cleaning comprises a glazed frame 3 pivotally attached at or outside one edge to the distal ends of a U-shaped frame 4 which is pivotally attached to the main frame 1 at or outside the other edge; the pivotal axes 5, 10 being parallel; the frames may be locked together and lie in one plane when in a closed position. The glass is fixed in grooves in three members of the frame 3 and projects over the fourth member. For weather-proofing a U-shaped cover is fixed on frame 4 to protect the gaps between the frames which have complementary rabbets.
Patent GB-999479-A (GB)
Title: Drying device for brickwork
Inventor: LINS WALTHER
IPC: E04B1/70
Filed: 1961-11-28
Abstract: 999,479. Drying walls. H. SCHONENBERGER, and M. SCHONENBERGER, [trading as AEROMATIC SCHONENBERGER FRERES]. Nov. 28, 1961, No. 42419/61. Heading E1S. A drying device for brick-work inserted into an upwardly inclined hole in the brick-work comprises a tube 5 spaced from the walls of the hole, to conduct dry air into the hole out of contact with the damp walls the outer end 4 of the tube fitting the hole tightly. This tube is mounted at the upper part of the hole in an outer perforated tube 2 by means of a strip 7, the two tubes being a single die casting. The tubes 2, 5 may be extended by a similar device comprising tubes 12, 15 fitting on the ends of the tubes 2, 5.
Patent GB-1282919-A (GB)
Title: Apparatus for examining properties of blood
IPC: A61B5/1459
Filed: 1969-08-26
Abstract: 1282919 Examining blood photo-electrically PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 26 Aug 1969 [29 Aug 1968] 42472/69 Heading G1A In an apparatus for examining blood, light is fed to a blood sample through a light guide and the radiation (light or infrared) returned to a further light to guide, adjacent the first light guide at the sample end, is fed via a filter to a detector. As shown the apparatus comprises a block 1 having a cavity through which blood is caused to flow in turbulent fashion via ducts 3 and 4. The cavity is closed by a fibre optic plate 5 and silicon rubber seal 7. The block is releasably secured to the remainder of the apparatus by a bayonet fitting 24. Light from a source 15 and mirror 29 is periodically interrupted by a rotating disc 30 having apertures 31 and passes down a first light guide 8 (comprising a glass rod coated with a different glass) and passes into the sample via the window 5. Radiation returning through the window is picked up by further light guides 9, 10 and 11 positioned with their ends adject the window in a straight line and adjacent each other. The guides are of 1mm square cross-section and extend through an opaque resin block 13 to photo-cells or photo-sensitive semi-conductors 19 to 21 covered by filters 16 to 18. The filters 16 and 18 pass a frequency 805 Ám which is in the infrared range and is the isobestic wavelength (i.e. a wavelength at which the absorbtions of oxidized and reduced haemoglobin are equal, and the filter 17 passes a frequency of 650Ám (red light). The spacing between the guides 8 and 9 is such that the intensity of the radiation passed by filter 16 is independent of the haemoglobin concentration. The spacing between the guides 8 and 10 is equal to that between guides 8 and 9 and the ratio of the outputs gives the oxygen saturation percentage. The output from the detector 19 giving a measure of the hemolysis and/or deformation of the corpuscles. The distance between the guides 8 and 11 is greater than that between 8 and 9 and the output of the detector gives a measure of the overall haemoglobin concentration. The outputs of the detectors 19 and 21 are of logarithmic form and are linearized by logarithmic amplifiers. All outputs are displayed.
Patent GB-1510280-A (GB)
Title: Trichloromethyl-trifluoromethyl-benzenes
IPC: C07C17/093
Filed: 1976-10-13
Abstract: 1510280 Preparation of trichloromethyl trifluoromethylbenzenes BAYER AG 13 Oct 1976 [3 Nov 1975 14 April 1976] 42546/76 Heading C2C The invention comprises a process for the preparation of a compound of Formula I wherein R<SP>1</SP> and R<SP>2</SP> are independently H, F or Cl by reacting a compound of Formula II wherein m and n are independently 0 or integers from 1 to 3 with a halogen transfer catalyst. During the reaction described above corresponding bis(trichloromethyl)benzenes and compounds having one or two mixed fluorochloromethyl groups are also produced as byproducts. Mixtures of isomers having the general Formula II above are prepared by reacting the corresponding bis(trichloromethyl)benzene with anhydrous HF and where desired specific isomers, e.g. 1-trifluoromethyl-3-difluorochloromethyl - benzene,1 - difluorochloromethyl - 3- fluorodichloromethylbenzene, 1, 4 - bis(difluorochloromethyl)benzene,1,4 - bis(fluorodichloromethyl)benzene,1,4 - bis(trifluoromethyl)benzene,2,5- bis(fluorodichloromethyl)chlorobenzene,2,5 - bis- (difluorochloromethyl)chlorobenzene, 2, 4 - bis- (fluorodichloromethyl)chlorobenzene, 2, 4 - bis- (difluorochloromethyl)chlorobenzene, 2, 6 - bis- (fluorodichloromethyl)chlorobenzene, 2, 6 - bis- (difluorochloromethyl)chlorobenzene and 2- (difluorochloromethyl - 6 - (fluorodichloromethyl)chlorobenzene are obtained by fractional distillation. 4,6 - difluoro - 1,3 - bis(fluorodichloromethyl)- benzene is obtained by reaction of 4,6-difluoro- 1,3-bis(trichloromethyl)benzene with anhydrous HF.
Patent GB-1086041-A (GB)
Title: Improvements in or relating to automatic control systems
Inventor: PIGOTT PETER MALCOLM
IPC: B65G43/00
Filed: 1963-10-31
Abstract: 1,086,041. Programmed process control. BRITISH IRON & STEEL RESEARCH ASSOCIATION. Jan. 28, 1965 [Oct. 31, 1963], No.43017/63. Heading G3N. A sequence control system is provided for the loading and unloading modes of a bank of cooling pits, for alloy steel billets, by an overhead gantry crane. Each pit has a lid and is a batch type furnace wherein controlled cooling cycles are carried out to obtain a desired metallurgical structure in the billets. The derivation of a sequence of work orders, determined by the alternative results of a decision or operation implicit in the order, is set out in the Specification. As shown, prepared input data is applied in analogue form to input unit 30 and translated into a binary code by unit 31. The binary coded data is transmitted via a unit 32 to a crane receiver 33, and stored in unit 36. After being error checked by logic unit 34 the binary coded data is fed to sequence unit 35. For orders requiring decisions the sequence unit 35 operates through a decision logic unit 37 which has inputs from the store 36 and a slot counter 39 providing information relevant to carrying out the desired decisions which are made on the basis of the mode of operation and whether further billet slots, of which there are a number in a pit, are to be worked. The result of a decision is fed to an order number modifier 40 and the slot counter 39. For orders requiring commands the sequence unit 35 works through a store selection logic unit 38, having inputs from store 36 and counter 39. The logic unit 38 translates the input data into positional signals which are fed to an X servo 42 controlling the longitudinal position of the crane, a Y servo 43 controlling vertical position of a hoist and a Z servo 44 controlling a securing means. On attainment of a desired position a detector 45 steps the sequence unit 35 to the next order. To prevent data being changed at the wrong time, the coding unit 31 is locked out by a receiver 47 responsive to signals from a transmitter 46 controlled by the sequence unit 35. When two cranes are employed an interlock unit 48 is provided to prevent a crane moving into an already occupied area. The longitudinal position of the crane is sensed by a digital photo-electric arrangement reading between a plurality of position reference points. The transmitter/receiver links between the cranes and the ground station imply inductive coupling loops.